DV RAPTOR TRV-900 noise

[SEBASTIANŽ]

I have the dv raptor and the trv-900.

I did a quiet piece yesterday, and I got what I
think is motor noise. How can I correct this?

[John P. Beale]

SEBASTIAN <NIK...@aol.com> wrote:
: I did a quiet piece yesterday, and I got what I

: think is motor noise. How can I correct this?

Use an external microphone near the sound source and away from the camera.
Professionals seldom use on-camera mics except for breaking news. Although
the TRV900's motor is usually audible, that camera's internal DSP filter
normally removes motor pickup from the internal mics under most conditions.

If you mean fix what you've already got, you can probably get some
improvement by using a program that analyses the spectrum of the ambient
noise and subtracts that from your track ("noise reduction"). Cool Edit
2000 is an example of such a program, which I find gives about 10 dB
reduction on stationary (constant, unchanging) background noise.
http://www.syntrillium.com

-john

[SEBASTIANŽ]

Thanks John.
I am not sure if the noise is coming from the
camera/mic combo, or when I go to edit it using
the canopus card/computer combo.

How can I be sure?
I never seemed to notice the noise until I played
it back through the computer in raptor software
player.

None the less, it seems to be a humm that could be
the motor everyone talks about. Or maybe it is
the sound card picking up noise from the computers
internal fans ...
I have a Turtle beach Montego ll card which is
other wise perfect.

Anyone have any ideas?
I have Sound forge, does it remove that type of
noise?

If so, how would I do it with sound forge xp?

Thanks

[Digital Video homepage]

>
> I have the dv raptor and the trv-900.
>

> I did a quiet piece yesterday, and I got what I
> think is motor noise. How can I correct this?

Maybe SoundForge can?

My advise: Use a good microphone next time...

Met vriendelijke groet / Kind regards

Eric van den Berg
Roosendaal
The Netherlands

E-mail: dvh...@dvhome.tmfweb.nl
DVRaptor connect page: http://www.dvhome.tmfweb.nl/setups.html
Digital Video homepage: http://www.dvhome.tmfweb.nl (in Dutch only)

[Digital Video homepage]

>
> None the less, it seems to be a humm that could be
> the motor everyone talks about. Or maybe it is
> the sound card picking up noise from the computers
> internal fans ...
> I have a Turtle beach Montego ll card which is
> other wise perfect.

When capturing DV, the only thing you do is copying digital data from
tape from harddisk. IMHO it is IMpossible that during that process
something like a soudcard can add a hum or other extra noise to the
digital signal. And: How can a soundcard (without a microphone!) pick up
noise from the fans?

My guess is that the hum is already added while recording with the
camcorder, not afterwards.

[Ian C]

This correct - the DV data captured on the hard drive cannot have any hum
added to it.
But it is possible that the hum is present when the audio is played on
computer due to computer noise, and the hum is not in the DV signal itself.
Do you have the same hum when you play other sounds? Try playing a quiet WAV
file by importing it into the same video edit program and playing it from
there.

Ian C.

Digital Video homepage <dvh...@dvhome.tmfweb.nl> wrote in message
news:390C092B...@dvhome.tmfweb.nl...

[rex...@my-deja.com]

First of all, Soundforge does not have noise reduction, you have to buy
an additional noise reduction plugin. Cool Edit has noise reduction,
but you have to export the audio to a wave file.

Second of all, many TRV900 users have experimented with a variety of
microphones... even very expensive ones.. and found that there is some
noise problems inherent to the TRV900 internal mic amplifiers. Some
TRV900 users apparently dont have this problem, so maybe Sony fixed the
problems or it's just poor quality control..... hit and miss depending
on which camera you happened to get. But if you hear motor noise, some
external mics will pick this up also, especially stereo mics with good
seperation. With my Sony and a $120 external stereo mic, motor noise is
reduce, but not entirely eliminated when recording in quiet
environments.

In article <390C086C...@dvhome.tmfweb.nl>,

Digital Video homepage <dvh...@dvhome.tmfweb.nl> wrote:
> >
> > I have the dv raptor and the trv-900.
> >
> > I did a quiet piece yesterday, and I got what I
> > think is motor noise. How can I correct this?
>
> Maybe SoundForge can?
>
> My advise: Use a good microphone next time...
>

> Met vriendelijke groet / Kind regards
>
> Eric van den Berg
> Roosendaal
> The Netherlands
>
> E-mail: dvh...@dvhome.tmfweb.nl
> DVRaptor connect page: http://www.dvhome.tmfweb.nl/setups.html
> Digital Video homepage: http://www.dvhome.tmfweb.nl (in Dutch only)
>

Sent via Deja.com http://www.deja.com/
Before you buy.

[SEBASTIANŽ]

Thanks guys....you are right..I only have it on DV
so it must be coming from the cam.

I was thinking that somehow the cables going from
the camera to the DV -RAPTOR were somehow picking
up the sound via the soundcard... or
something...HUmmm
What does the sound cables do when capturing...
Do I need them conected at all?

Is the video and audio totally contained within
the DV cable?

Maybe I will try removing the audio cables when
capturing.

Thanks again

It most likely is the cam, just don't know the
best way to remove it.